Project Description

Advanced Finishing Services

  • Precision grinding and lapping
  • Laser machining
  • Engineering design and support
  • Metallizing
  • Threaded components
Macor Glass Ceramic

Material Properties (Macor Glass Ceramic)

Density  2.52 g/cm3
Porosity 0%
Young’s Modulus, 25°C 66.9 GPa
Poisson’s Ratio 0.29
Shear Modulus, 25°C 25.5 GPa
Hardness, Knoop, 100g 250
Rockwell A 48
Modulus of Rupture, 25°C 94 MPa
Compressive strength 345 MPa
Fracture Toughness 1.53 MPa m0.5

Thermal
Coefficient of Expansion
-200 to 25°C 74×10-7/°C
25 to 300°C 93×10-7/°C
25 to 600°C 114×10-7/°C
25 to 800°C 126×10-7/°C
Specific Heat, 25°C .79KJ/kg°C
Thermal Conductivity, 25°C 1.46 W/m°C
Thermal Diffusivity, 25°C 7.3×10-7m2/s
Continuous Operating Temperature 800°C
Maximum No Load Temperature 1000°C

Electrical
Dielectric Constant, 25°C
1 KHz 6.03
8.5 GHz 5.67
Loss Tangent, 25°C
1KHz 4.7×10-3
8.5 GHz 7.1×10-3
Dielectric Strength (AC) avg

(at 0.3mm thickness and 25°C)

9.4 KV/mm
Dielectric Strength (DC) avg.

(at 0.3mm thickness and 25°C)

62.4 KV/mm
DC Volume Resistivity, 25°C >1016 ohm-cm

*The chart is intended to illustrate typical properties. Property values vary with method of manufacture, size, and shape of part. Data contained herein is not to be construed as absolute and does not constitute a representation or warranty for which Ortech, Inc. assumes legal responsibility.